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3 years ago

14 a and b please and thank u

Mathematics

1 answer:

Murrr4er [49]3 years ago

7 0

I don't know the answer, but I suggest downloading the app: PhotoMath. It scans a math problem and shows you how to complete the problem. I hope this helped~!

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Solve the system by substitution. 4y = 5x -10y =-50

Trava [24]

Answer:

$x = -20 ; y =-5$

Step-by-step explanation:

Eqn. 1 ----> 4y = x

Eqn. 2 ----> 5x-10y = -50

(Simplifying eqn.2 further)

$=>5(x-2y)=-50$

$=>x-2y=\frac{-50}{5} =-10$

(Substituting the value of x from eqn. 1)

$=>4y-2y=-10$

$=>2y=-10$

$=>y =\frac{-10}{2} =-5$

Now, substituting the value of y in eqn. 1 ,

$x = 4*(-5)=-20$

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2 years ago

3x~6y=~3 2x+4y=30 Elimination using multiplication

Nat2105 [25]

$\left \{ {{3x-6y=-3\ \ |*2} \atop {2x+4y=30\ \ | *(-3)}} \right. \\\\ \left \{ {{6x-12y=-6} \atop {-6x-12y=-90}} \right. \\+----\\elimination\\\\
0 \neq -69\\\\There\ are\ no\ solutions$

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3 years ago

A train travels 600 kilometers in 1 hour. What is the trains velocity in meters/seconds?

bixtya [17]

Answer:

166.666667 m/ps

Step-by-step explanation:

600/60 will give us the amount of kilometers in a minute. 10 km/ph, now i'll divide more to find the seconds. 0.166666667 this is the amount of KILOMETERS in a second, we are trying to find in meters. multiply by 1000 and 166.666667. a fast fricking train if you ask me.

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3 years ago

Find the midpoint of the line segment with the given endpoints. (-1,0), (-3,-4)

larisa86 [58]

No can’t u just search it up I feel like you’ll get the answer to this question in to time

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3 years ago

Read 2 more answers

Simply

-BARSIC- [3]

Answer:

C. 2 $\frac{5}{6\\}$